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USE AdventureWorks;
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IF OBJECT_ID ( 'Production.usp_GetList', 'P' ) IS NOT NULL
    DROP PROCEDURE Production.usp_GetList;
GO
CREATE PROCEDURE Production.usp_GetList @product varchar(40)
    , @maxprice money
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USE AdventureWorks;
GO
IF OBJECT_ID ( 'Production.usp_GetList', 'P' ) IS NOT NULL
    DROP PROCEDURE Production.usp_GetList;
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CREATE PROCEDURE Production.usp_GetList @product varchar(40)
    , @maxprice money
    , ......
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